Design of Embedded Electric Power on-line Monitoring Instrument Based on ARM

After introduced some applications of embedded technology,one design of an integrated instrument for measuring three-phase electric parameter based on ARM7 and 51 microcontroller was discussed.This design adopts multi-CPU embedded system policy and masterslave CPU hardware structure,which was developed that 89C52 microcontroller(slave CPU) played a role of AC sampling and S3C4510B(master CPU) took responsibility for calculating electric parameter,network communication and system management.Besides described the system structure and master-slave CPU communication interface used to develop the software of two CPUs,also analyzed the module design of system software in detail.The instrument was proved working effectively and reliably in application,which satisfied the request that the embedded monitoring system need,made the data processing easily and directly.